updated SNS example to specify FifoThroughputScope

Author: scmacdon

javav2/example_code/sns/src/main/java/com/example/sns/PriceUpdateExample.java

@@ -4,6 +4,7 @@
 package com.example.sns;
 
 // snippet-start:[sns.java2.PriceUpdateExample.import]
+
 import software.amazon.awssdk.policybuilder.iam.IamConditionOperator;
 import software.amazon.awssdk.policybuilder.iam.IamEffect;
 import software.amazon.awssdk.policybuilder.iam.IamPolicy;
@@ -39,14 +40,14 @@ public class PriceUpdateExample {
     public static void main(String[] args) {
 
         final String usage = "\n" +
-                "Usage: " +
-                "    <topicName> <wholesaleQueueFifoName> <retailQueueFifoName> <analyticsQueueName>\n\n" +
-                "Where:\n" +
-                "   fifoTopicName - The name of the FIFO topic that you want to create. \n\n" +
-                "   wholesaleQueueARN - The name of a SQS FIFO queue that will be created for the wholesale consumer. \n\n"
-                +
-                "   retailQueueARN - The name of a SQS FIFO queue that will created for the retail consumer. \n\n" +
-                "   analyticsQueueARN - The name of a SQS standard queue that will be created for the analytics consumer. \n\n";
+            "Usage: " +
+            "    <topicName> <wholesaleQueueFifoName> <retailQueueFifoName> <analyticsQueueName>\n\n" +
+            "Where:\n" +
+            "   fifoTopicName - The name of the FIFO topic that you want to create. \n\n" +
+            "   wholesaleQueueARN - The name of a SQS FIFO queue that will be created for the wholesale consumer. \n\n"
+            +
+            "   retailQueueARN - The name of a SQS FIFO queue that will created for the retail consumer. \n\n" +
+            "   analyticsQueueARN - The name of a SQS standard queue that will be created for the analytics consumer. \n\n";
         if (args.length != 4) {
             System.out.println(usage);
             System.exit(1);
@@ -60,9 +61,9 @@ public static void main(String[] args) {
         // For convenience, the QueueData class holds metadata about a queue: ARN, URL,
         // name and type.
         List<QueueData> queues = List.of(
-                new QueueData(wholeSaleQueueName, QueueType.FIFO),
-                new QueueData(retailQueueName, QueueType.FIFO),
-                new QueueData(analyticsQueueName, QueueType.Standard));
+            new QueueData(wholeSaleQueueName, QueueType.FIFO),
+            new QueueData(retailQueueName, QueueType.FIFO),
+            new QueueData(analyticsQueueName, QueueType.Standard));
 
         // Create queues.
         createQueues(queues);
@@ -95,9 +96,9 @@ public static String createFIFOTopic(String topicName) {
                 "FifoThroughputScope", "MessageGroup");
 
             CreateTopicRequest topicRequest = CreateTopicRequest.builder()
-                    .name(topicName)
-                    .attributes(topicAttributes)
-                    .build();
+                .name(topicName)
+                .attributes(topicAttributes)
+                .build();
 
             CreateTopicResponse response = snsClient.createTopic(topicRequest);
             String topicArn = response.topicArn();
@@ -115,10 +116,10 @@ public static String createFIFOTopic(String topicName) {
     public static void subscribeQueues(List<QueueData> queues, String topicARN) {
         queues.forEach(queue -> {
             SubscribeRequest subscribeRequest = SubscribeRequest.builder()
-                    .topicArn(topicARN)
-                    .endpoint(queue.queueARN)
-                    .protocol("sqs")
-                    .build();
+                .topicArn(topicARN)
+                .endpoint(queue.queueARN)
+                .protocol("sqs")
+                .build();
 
             // Subscribe to the endpoint by using the SNS service client.
             // Only Amazon SQS queues can receive notifications from an Amazon SNS FIFO
@@ -139,20 +140,20 @@ public static void publishPriceUpdate(String topicArn, String payload, String gr
             String attributeValue = "wholesale";
 
             MessageAttributeValue msgAttValue = MessageAttributeValue.builder()
-                    .dataType("String")
-                    .stringValue(attributeValue)
-                    .build();
+                .dataType("String")
+                .stringValue(attributeValue)
+                .build();
 
             Map<String, MessageAttributeValue> attributes = new HashMap<>();
             attributes.put(attributeName, msgAttValue);
             PublishRequest pubRequest = PublishRequest.builder()
-                    .topicArn(topicArn)
-                    .subject(subject)
-                    .message(payload)
-                    .messageGroupId(groupId)
-                    .messageDeduplicationId(dedupId)
-                    .messageAttributes(attributes)
-                    .build();
+                .topicArn(topicArn)
+                .subject(subject)
+                .message(payload)
+                .messageGroupId(groupId)
+                .messageDeduplicationId(dedupId)
+                .messageAttributes(attributes)
+                .build();
 
             final PublishResponse response = snsClient.publish(pubRequest);
             System.out.println(response.messageId());
@@ -174,17 +175,17 @@ public static void createQueues(List<QueueData> queueData) {
             CreateQueueResponse response;
             if (isFifoQueue) {
                 response = sqsClient.createQueue(r -> r
-                        .queueName(queue.queueName)
-                        .attributes(Map.of(
-                                QueueAttributeName.FIFO_QUEUE, "true")));
+                    .queueName(queue.queueName)
+                    .attributes(Map.of(
+                        QueueAttributeName.FIFO_QUEUE, "true")));
             } else {
                 response = sqsClient.createQueue(r -> r
-                        .queueName(queue.queueName));
+                    .queueName(queue.queueName));
             }
             queue.queueURL = response.queueUrl();
             queue.queueARN = sqsClient.getQueueAttributes(b -> b
-                    .queueUrl(queue.queueURL)
-                    .attributeNames(QueueAttributeName.QUEUE_ARN)).attributes().get(QueueAttributeName.QUEUE_ARN);
+                .queueUrl(queue.queueURL)
+                .attributeNames(QueueAttributeName.QUEUE_ARN)).attributes().get(QueueAttributeName.QUEUE_ARN);
         });
     }
 
@@ -195,25 +196,25 @@ public static void addAccessPolicyToQueuesFINAL(List<QueueData> queues, String t
         }
         queues.forEach(queue -> {
             IamPolicy policy = IamPolicy.builder()
-                    .addStatement(b -> b // Allow account user to send messages to the queue.
-                            .effect(IamEffect.ALLOW)
-                            .addPrincipal(IamPrincipalType.AWS, account)
-                            .addAction("SQS:*")
-                            .addResource(queue.queueARN))
-                    .addStatement(b -> b // Allow the SNS FIFO topic to send messages to the queue.
-                            .effect(IamEffect.ALLOW)
-                            .addPrincipal(IamPrincipalType.AWS, "*")
-                            .addAction("SQS:SendMessage")
-                            .addResource(queue.queueARN)
-                            .addCondition(b1 -> b1
-                                    .operator(IamConditionOperator.ARN_LIKE)
-                                    .key("aws:SourceArn").value(topicARN)))
-                    .build();
+                .addStatement(b -> b // Allow account user to send messages to the queue.
+                    .effect(IamEffect.ALLOW)
+                    .addPrincipal(IamPrincipalType.AWS, account)
+                    .addAction("SQS:*")
+                    .addResource(queue.queueARN))
+                .addStatement(b -> b // Allow the SNS FIFO topic to send messages to the queue.
+                    .effect(IamEffect.ALLOW)
+                    .addPrincipal(IamPrincipalType.AWS, "*")
+                    .addAction("SQS:SendMessage")
+                    .addResource(queue.queueARN)
+                    .addCondition(b1 -> b1
+                        .operator(IamConditionOperator.ARN_LIKE)
+                        .key("aws:SourceArn").value(topicARN)))
+                .build();
             sqsClient.setQueueAttributes(b -> b
-                    .queueUrl(queue.queueURL)
-                    .attributes(Map.of(
-                            QueueAttributeName.POLICY,
-                            policy.toJson())));
+                .queueUrl(queue.queueURL)
+                .attributes(Map.of(
+                    QueueAttributeName.POLICY,
+                    policy.toJson())));
         });
     }